Skid-mounted hydrogen refueling station heat management system with hydrogenation and charging functions

Abstract

The utility model relates to the technical field of liquid hydrogen storage, in particular to a skid-mounted hydrogen refueling station heat management system with double functions of hydrogenation and charging. Comprising a liquid hydrogen storage tank, a high-pressure buffer tank is connected with a hydrogen cooler through a pipeline, and the hydrogen cooler is connected with a hydrogen hydrogenation machine through a pipeline; a gas outlet of the hydrogen booster pump is connected with a buffer tank through a pipeline, the buffer tank is connected with a hydrogen fuel cell through a pipeline, and the hydrogen fuel cell is connected with a charging pile; the hydrogen fuel cell is connected with an air compressor, the air compressor is respectively connected with the vaporizer and the heat exchange and cold supply assembly for heat exchange, the hydrogen fuel cell is connected with the vaporizer for heat exchange, and the hydrogen cooler is connected with the vaporizer for heat exchange. The hydrogenation skid-mounted station disclosed by the utility model integrates double functions of charging and hydrogenation, the space of the hydrogenation skid-mounted station is fully utilized, and heat exchange can be fully performed among the hydrogen fuel cell, the vaporizer, the air compressor, the hydrogen cooler and the heat exchange and cold supply assembly, so that a large amount of energy is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid hydrogen storage hydrogen technology field especially, it relates to a kind of pry hydrogen station heat management system with hydrogenation and charging double function. BACKGROUND

[0002] At present, the hydrogenation pry station in current generally only has hydrogenation function, function is relatively single, since now hydrogen energy automobile market share is smaller, and electric car market share is already very big, charging facility is now seriously insufficient, if hydrogen can be used in hydrogenation pry station to generate electricity, electric car is charged by charging pile, then it will play a good complementary role to charging facility, and hydrogenation pry station energy and space advantage can be fully utilized.In addition, since liquid hydrogen storage tank in actual hydrogen storage process, part of liquid hydrogen gasification occurs, hydrogen flash gas is generated at the top of liquid hydrogen storage tank, this part of gas is not fully utilized in liquid hydrogen storage tank, forming waste.Furthermore, when liquid hydrogen gasification, hydrogen fuel cell system each component works, some components need cold source, and some components need heat source, if heat exchange between these components can be carried out, then a large amount of energy can be saved, and there is no good solution to the above problems at present.

[0003] In summary, how to fully utilize the space of hydrogenation pry station and heat exchange of each component has become a technical problem urgently to be solved in the industry. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of pry hydrogen station heat management system with hydrogenation and charging double function to make up for the deficiency of prior art, solve the problem of single function of the hydrogenation pry station in the past, solve the problem of heat exchange between each component in hydrogenation pry station and fully utilize.

[0005] The utility model employs the technical scheme to solve the above technical problem:

[0006] A kind of pry hydrogen station heat management system with hydrogenation and charging double function, including liquid hydrogen storage tank, the bottom of the liquid hydrogen storage tank contains liquid hydrogen, and the top is hydrogen flash gas, the bottom of liquid hydrogen storage tank is connected with liquid hydrogen bottle by one branch way through pipeline, liquid hydrogen bottle is inserted with liquid hydrogen booster pump, the liquid outlet of liquid hydrogen booster pump is connected with the gas inlet of vaporizer by pipeline, the gas outlet of vaporizer is connected with high-pressure buffer tank, high-pressure buffer tank is connected with hydrogen cooler by pipeline, and hydrogen cooler is connected with hydrogen hydrogenation machine by pipeline again;

[0007] Another branch of the bottom of the liquid hydrogen storage tank is connected with the inlet of the heat exchange and cooling assembly through a pipeline, the outlet of the heat exchange and cooling assembly is connected with the gas inlet of the hydrogen booster pump through a pipeline, the gas inlet of the hydrogen booster pump is also connected with the top of the liquid hydrogen storage tank through a pipeline, the gas outlet of the hydrogen booster pump is connected with the buffer tank through a pipeline, the buffer tank is connected with the hydrogen fuel cell through a pipeline, and the hydrogen fuel cell is connected with the charging pile.

[0008] The hydrogen fuel cell is connected with an air compressor, the air compressor is connected with the vaporizer and the heat exchange and cooling assembly for heat exchange, the hydrogen fuel cell is connected with the vaporizer for heat exchange, and the hydrogen cooler is connected with the vaporizer for heat exchange.

[0009] The high-pressure buffer tank is connected with the hydrogen fuel cell through a pipeline and a pressure reducing valve.

[0010] The heat exchange and cooling assembly comprises a water bath vaporizer and an air bath vaporizer connected with each other.

[0011] A pressure reducing valve is arranged on the pipeline between the buffer tank and the hydrogen fuel cell.

[0012] The hydrogen fuel cell is also connected with a lithium battery.

[0013] The utility model discloses the above-mentioned scheme has the following advantages:

[0014] The utility model discloses one aspect through liquid hydrogen bottle, liquid hydrogen booster pump pumps into the vaporizer and supplies into high -pressure buffer tank and hydrogenation machine after the gasification of liquid hydrogen, realizes normal hydrogen hydrogenation function, another aspect through hydrogen booster pump, hydrogen flash vaporization gas is supplied into buffer tank and hydrogen fuel cell after the pressurization of liquid hydrogen storage tank top, and hydrogen booster pump also supplies into buffer tank and hydrogen fuel cell after the gasification of liquid hydrogen storage tank bottom through heat exchange and cooling assembly, and hydrogen fuel cell can charge for charging pile, thereby realizing the charging function of electric car, and third aspect, hydrogen fuel cell and vaporizer can exchange heat between each other, vaporizer and air compressor, hydrogen cooler can exchange heat between each other, and heat exchange and cooling assembly and air compressor can exchange heat between each other, so that the hydrogenation pry station of the utility model discloses is integrated charging and hydrogenation double function, and the space of hydrogenation pry station is fully utilized, and hydrogen fuel cell, vaporizer, air compressor, hydrogen cooler, heat exchange and cooling assembly can fully exchange heat between each other, and a large amount of energy is saved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structural principle schematic drawing of the utility model.

[0016] In the figure, 1, liquid hydrogen storage tank, 2, liquid hydrogen bottle, 3, liquid hydrogen booster pump, 4, vaporizer, 5, high pressure buffer tank, 6, hydrogen cooler, 7, hydrogen hydrogenator, 8, heat exchange cooling assembly, 9, hydrogen booster pump, 10, buffer tank, 11, hydrogen fuel cell, 12, charging pile, 13, air compressor, 14, pressure reducing valve, 15, lithium battery. DETAILED DESCRIPTION

[0017] In order to clearly illustrate the technical features of the present scheme, the present utility model will be described in detail below through specific embodiments, and in conjunction with the accompanying drawings.

[0018] As shown in Figure 1 A hydrogenation and charging double-function pry-mounted hydrogenation station heat management system, comprising a liquid hydrogen storage tank 1, the bottom of the liquid hydrogen storage tank 1 contains liquid hydrogen, and the top is hydrogen flash gas; one branch at the bottom of the liquid hydrogen storage tank 1 is connected to a liquid hydrogen bottle 2 through a pipeline, the liquid hydrogen bottle 2 is internally provided with a liquid hydrogen booster pump 3, the liquid hydrogen booster pump 3 is connected to a gas inlet of a vaporizer 4 through a pipeline, the gas outlet of the vaporizer 4 is connected to a high-pressure buffer tank 5, the high-pressure buffer tank 5 is connected to a hydrogen cooler 6 through a pipeline, the hydrogen cooler 6 is further connected to a hydrogen hydrogenator 7 through a pipeline, and the hydrogen cooler 6 can cool the hydrogen gas discharged from the high-pressure buffer tank 5, so as to control the temperature of the hydrogen gas entering the hydrogen hydrogenator 7.

[0019] Another branch at the bottom of the liquid hydrogen storage tank 1 is connected to an inlet of a heat exchange cooling assembly 8 through a pipeline, the outlet of the heat exchange cooling assembly 8 is connected to a gas inlet of a hydrogen booster pump 9 through a pipeline, the gas inlet of the hydrogen booster pump 9 is simultaneously connected to the top of the liquid hydrogen storage tank 1 through a pipeline, the gas outlet of the hydrogen booster pump 9 is connected to a buffer tank 10 through a pipeline, and the buffer tank 10 is further connected to a hydrogen fuel cell 11 through a pipeline.

[0020] The hydrogen fuel cell 11 is connected to an air compressor 13, the air compressor 13 is connected to the vaporizer 4 and the heat exchange cooling assembly 8 respectively for heat exchange, the hydrogen fuel cell 11 is connected to the vaporizer 4 for heat exchange, and the hydrogen cooler 6 is connected to the vaporizer 4 for heat exchange.

[0021] The high-pressure buffer tank 5 is connected to the hydrogen fuel cell 11 through a pipeline and a pressure reducing valve 14, and the high-pressure hydrogen gas in the high-pressure buffer tank 5 can also be supplied to the hydrogen fuel cell 11 for use after being reduced in pressure by the pressure reducing valve 14.

[0022] The heat exchange cooling assembly 8 comprises an air bath vaporizer and a water bath vaporizer connected in series, can vaporize liquid hydrogen, and can provide a cold source for required components.

[0023] The pipeline between the buffer tank 10 and the hydrogen fuel cell 11 is provided with a pressure reducing valve 14 to reduce the pressure of hydrogen entering the hydrogen fuel cell 11.

[0024] The hydrogen fuel cell 11 is also connected to a lithium battery 15, and the lithium battery 15 can be charged, and the lithium battery 15 can also provide power for the operation of the hydrogen fuel cell 11.

[0025] Working principle:

[0026] After the liquid hydrogen at the bottom of the liquid hydrogen storage tank 1 enters the liquid hydrogen bottle 2, the liquid hydrogen booster pump 3 works to pressurize the liquid hydrogen, and the liquid hydrogen is pumped into the vaporizer 4 for gasification to form high-pressure hydrogen gas, which is stored in the high-pressure buffer tank 5, and the high-pressure hydrogen gas in the high-pressure buffer tank 5 is first cooled in the hydrogen cooler 6, and then enters the hydrogen hydrogenator 7 to realize the normal hydrogen hydrogenation function.

[0027] The hydrogen flash gas at the top of the liquid hydrogen storage tank 1 enters the buffer tank 10 for storage under the action of the hydrogen booster pump 9, and when the amount of hydrogen flash gas is insufficient, the liquid hydrogen at the bottom of the liquid hydrogen storage tank 1 enters the heat exchange cooling assembly 8 for gasification under the action of the hydrogen booster pump 9, and the hydrogen gas after gasification also enters the buffer tank 10 for storage under the action of the hydrogen booster pump 9, and the hydrogen gas in the buffer tank 10 is reduced by the pressure reducing valve 14 and supplied to the hydrogen fuel cell 11, and the electric energy generated by the hydrogen fuel cell 11 during operation can be supplied to the charging pile 12 to realize the charging function of the electric vehicle.

[0028] The heat source generated by the hydrogen fuel cell 11 during operation can be exchanged with the vaporizer 4 to cool the hydrogen fuel cell 11, and the vaporizer 4 fully utilizes the heat source of the hydrogen fuel cell 11 to gasify the liquid hydrogen, and the cold source generated by the vaporizer 4 can also be provided to the hydrogen cooler 6 and the air compressor 13, and the heat source generated by the air compressor 13 can also be exchanged with the heat exchange cooling assembly 8 to form a complete heat management system, and the components are fully exchanged, which can save a lot of energy.

[0029] The above specific embodiments cannot be used as a limitation on the protection scope of the present application, and any alternative improvement or change made by those skilled in the art to the embodiments of the present application falls within the protection scope of the present application.

[0030] The details of the present application are not described, which are well-known to those skilled in the art.

Claims

1. A skid-mounted hydrogen station thermal management system with dual functions of hydrogenation and charging, characterized in that: The liquid hydrogen storage tank contains liquid hydrogen at the bottom and hydrogen flash gas at the top, one branch at the bottom of the liquid hydrogen storage tank is connected with the liquid hydrogen bottle through a pipeline, a liquid hydrogen booster pump is inserted in the liquid hydrogen bottle, the outlet of the liquid hydrogen booster pump is connected with the gas inlet of the vaporizer through a pipeline, the gas outlet of the vaporizer is connected with the high-pressure buffer tank, the high-pressure buffer tank is connected with the hydrogen cooler through a pipeline, and the hydrogen cooler is connected with the hydrogen refueling machine through a pipeline; Another branch at the bottom of the liquid hydrogen storage tank is connected with the inlet of the heat exchange cooling assembly through a pipeline, the outlet of the heat exchange cooling assembly is connected with the gas inlet of the hydrogen booster pump through a pipeline, the gas inlet of the hydrogen booster pump is connected with the top of the liquid hydrogen storage tank through a pipeline, the gas outlet of the hydrogen booster pump is connected with the buffer tank through a pipeline, and the buffer tank is connected with the hydrogen fuel cell through a pipeline, and the hydrogen fuel cell is connected with the charging pile; The hydrogen fuel cell is connected with an air compressor, the air compressor is connected with the vaporizer and the heat exchange cooling assembly for heat exchange, the hydrogen fuel cell is connected with the vaporizer for heat exchange, and the hydrogen cooler is connected with the vaporizer for heat exchange.

2. The skid-mounted hydrogen station thermal management system with dual functions of hydrogenation and charging according to claim 1, characterized in that: The high-pressure buffer tank is connected with the hydrogen fuel cell through a pipeline and a pressure reducing valve.

3. The skid-mounted hydrogen station thermal management system with dual functions of hydrogenation and charging according to claim 1, characterized in that: The heat exchange cooling assembly comprises a air bath vaporizer and a water bath vaporizer connected with each other.

4. The skid-mounted hydrogen station thermal management system with dual functions of hydrogenation and charging according to claim 1, characterized in that: A pressure reducing valve is arranged on the pipeline between the buffer tank and the hydrogen fuel cell.

5. The skid-mounted hydrogen station thermal management system with dual functions of hydrogenation and charging according to claim 1, characterized in that: The hydrogen fuel cell is further connected with a lithium battery.

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